Accession Number : ADA194669

Title :   Approximate Evaluation of Semi-Markov Chain Reliability Models,

Corporate Author : MASSACHUSETTS INST OF TECH CAMBRIDGE DEPT OF AERONAUTICS AND ASTRONAUTICS

Personal Author(s) : Wereley, Norman M ; Walker, Bruce K

PDF Url : ADA194669

Report Date : 22 Feb 1988

Pagination or Media Count : 22

Abstract : A property observed in high reliability fault tolerant control systems is the relatively rare occurrence of component failures compared to the frequent occurrence of redundancy management decision events. This property leads to a temporal decomposition of the semi-Markov chain reliability model into two times scales: a slow time scale for failure events, a fast time scale for FDI events. Conditions are described under which a perturbed semi-Markov chain can be approximated by an enlarged Markov process, the parameters of which are derived from the parameters of the semi-Markov chain.

Descriptors :   *MARKOV PROCESSES, *MATHEMATICAL MODELS, DECISION MAKING, FAILURE, MANAGEMENT, PERTURBATIONS, REDUNDANCY, FAULT TOLERANT COMPUTING, RELIABILITY, SCALE, TEST AND EVALUATION, TIME

Subject Categories : Numerical Mathematics

Distribution Statement : APPROVED FOR PUBLIC RELEASE